Exercise stand



FIG. 1 is a perspective view of an exercise stand showing my new design;

FIG. 2 is a rear view of the exercise stand;

FIG. 3 is a front view of the exercise stand;

FIG. 4 is a top view of the exercise stand;

FIG. 5 is a bottom view of the exercise stand;

FIG. 6 is a left side view of the exercise stand; and,

FIG. 7 is a right side view of the exercise stand.

The broken lines showing screw fasteners illustrate portions of the exercise stand which form no part of the claimed design. 

CLAIM I claim the ornamental design for an exercise stand, as shown and described. 